| All Country Flags of the World | 0 | - | 5.00 | 3,725,014 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,866 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,286 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,151 |
| Flags with Crescents | 0 | - | 4.98 | 171,762 |
| Country Flag Trivia | 0 | - | 4.82 | 58,304 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,183 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,640 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,894 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,130 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,176 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,635 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,635 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,628 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,231 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,365 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,826 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,602 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,923 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,585 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,499 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,563 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,459 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,499 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,300 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,888 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,303 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,190 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,562 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,023 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,194 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,551 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,798 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,884 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,855 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,863 |
| Flags of North and South America | 0 | - | 4.99 | 378,125 |
| Former Flags | 0 | - | 4.97 | 108,826 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,306 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,147 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,105 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,878 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,285 |
| 20 Random Country Flags | 0 | - | 4.99 | 620,395 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,398 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,682 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,533 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,687 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,420 |
| Flag Maths | 0 | - | 4.61 | 57,865 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,071 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,274 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,339 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,133 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,683 |
| World Coats of Arms | 0 | - | 4.99 | 65,324 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,789 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,996 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,974 |
| Similar Flags #1 | 0 | - | 4.75 | 130,960 |
| Similar Flags #2 | 0 | - | 4.74 | 138,241 |
| Emoji Flags | 0 | - | 4.35 | 44,331 |
| Countries by Road Signs | 0 | - | 4.98 | 54,453 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,285 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,599 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,676 |
| Select the World Flags | 0 | - | 4.28 | 38,039 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,664 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,232 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,160 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,837 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,551 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,596 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,184 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,759 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,546 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,117 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,260 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,357 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,915 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,789 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,857 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,249 |
| Pixelated World Map | 0 | - | 5.00 | 144,276 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,082 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,809 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 745,668 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,982 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,331 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,473 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,655 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,471 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,838 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,453 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,741 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,259 |
| Geography by Picture - B | 0 | - | 4.42 | 55,834 |
| Geography by Picture - H | 0 | - | 4.50 | 58,433 |
| Geography by Picture - N | 0 | - | 4.45 | 42,397 |
| Geography by Picture - R | 0 | - | 4.56 | 41,193 |
| Geography by Picture - T | 0 | - | 4.54 | 58,045 |
| Flags of Oceania | 0 | - | 5.00 | 263,484 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,856 |
| Flags of WW1 | 0 | - | 4.60 | 38,774 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,659 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,591 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,887 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,620 |
| Boundary Waters | 0 | - | 4.92 | 88,840 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,470 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,847 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,570 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,064 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,088 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,936 |
| All Germanic Languages With a Map | 0 | - | 4.89 | 69,733 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,973,260 |
| Landlocked Countries | 0 | - | 4.99 | 427,291 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,993 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,868 |
| Satellite Images #1 | 0 | - | 4.46 | 130,109 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,855 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,464 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,307 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,271 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,678 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,911 |
| World Capitals Quiz | 0 | - | 5.00 | 5,114,112 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,269 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,122 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,789 |
| Merged Countries #2 | 0 | - | 4.96 | 99,972 |
| Merged Countries #4 | 0 | - | 4.81 | 94,193 |
| Merged Countries #6 | 0 | - | 4.90 | 73,907 |
| Merged Countries #7 | 0 | - | 4.93 | 83,243 |
| Geography by Picture - A | 0 | - | 4.39 | 60,491 |
| Geography by Picture - D | 0 | - | 4.15 | 45,828 |
| Geography by Picture - F | 0 | - | 4.31 | 51,233 |
| Geography by Picture - G | 0 | - | 4.39 | 48,123 |
| Geography by Picture - J | 0 | - | 4.16 | 38,635 |
| Geography by Picture - K | 0 | - | 4.29 | 33,294 |
| Geography by Picture - C | 0 | - | 4.31 | 57,284 |
| Geography by Picture - L | 0 | - | 4.37 | 59,183 |
| Geography by Picture - M | 0 | - | 4.14 | 40,620 |
| Geography by Picture - P | 0 | - | 4.24 | 42,605 |
| Geography by Picture - S | 0 | - | 4.38 | 47,212 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,554 |
| Islands by Picture | 0 | - | 4.28 | 107,964 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,996 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,518 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,174 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,193 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,646 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,034 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,808 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,385 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,055 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,389 |
| Island Countries | 0 | - | 4.99 | 713,030 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,938 |
| Himalayan Countries | 0 | - | 4.93 | 140,849 |
| Andean Countries | 0 | - | 4.94 | 85,811 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,928 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,501 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,470 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,699 |
| Danube Countries | 0 | - | 4.97 | 72,564 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,805 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,975 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,452 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,925 |
| European Landlocked Countries | 0 | - | 4.99 | 147,770 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,544 |
| Countries with the Most Species | 0 | - | 4.99 | 103,652 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,648 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,815 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,953 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,927 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,682 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,139 |
| Countries in the Alps | 0 | - | 4.87 | 118,982 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,008 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,139 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,056 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,176 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,132 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,395 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,601 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,996 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,517 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,316 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,954 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,679 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,927 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,024 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,155 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,739 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,493 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,844 |
